When you ask "What number is halfway between 78 and 176?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=78 and Y=176.
To find the number halfway between 78 and 176, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 78 and 176 into our formula, we get:
(78 + 176)/2 = 127
Thus, the number halfway between 78 and 176 is 127.
To check that our answer is correct, we subtract 78 from 127 and subtract 127 from 176 and compare the two numbers:
127 - 78 = 49
176 - 127 = 49
As you can see, the halfway number is 49 higher than 78 and 49 lower than 176. Therefore, our halfway between answer of 127 above is correct.
Halfway Between
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Halfway Between 78 and 177
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